Burger King Worldwide is working on a deal to buy the Canadian doughnut chain Tim Hortons, in order to execute a tax inversion.

The deal would move the new combined company's headquarters to Canada, potentially realizing tax benefits. Burger King (NYSE: BKW) started talks with Tim Hortons some weeks ago and could see special value in the Canadian chain's high-margin coffee offerings -- even as rival McDonald's (NYSE: MCD) has made a concerted effort to push its own McCafe coffees. As the talks currently stand, the new company would continue to operate the two chains after any deal. -- Wall Street Journal

The American Heart Association has weighed in on e-cigarettes and is advocating some moderation in rhetoric against them. Specifically, the AHA said they might be of use to some people as a last resort to try and quit smoking. At the same time, the group took pains to note that it is not endorsing them as safe, as more study is needed. -- Bloomberg

Florida's citrus crop is facing a crisis known as "greening", an incurable tree disease borne by an invasive bug, the Asian Citrus Psyllid. Some experts have warned that, at the rate the disease is progressing, Florida's entire citrus economy is in danger of collapse, which in turn would have major repercussions to the entire state's economy. -- Associated Press